MYCOM COMPRESSOR

Generally, a screw compressor uses oil injection to keep discharge temperature at a low level during operation without loss of volumetric efficiency even at high compression ratios. It can, therefore, be operated with a single-stage compression system even at evaporative temperatures near −40 °C.

However, for normal use at low temperatures, a 2-stage compression system is applied in order to improve kW/RT (the ratio of power consumption versus refrigerating capacity). If the 2-stage compression system is configured with standard type screw compressors, at least two screw compressor units need to be installed, one on the high-stage and the other on the low-stage, which inevitably requires double installation of the entire system including machinery, power, utilities, etc. This 2-stage screw compressor is produced to solve this problem. It is a single unit that has two single-stage compressor units combined into one. 

The 2520**C model has a capacity control mechanism for startup load reduction on the high-stage, and a capacity control mechanism for coping with load change on the low-stage. In addition, there are three specification types in rotor length for the low-stage and the high-stage each. 

Moreover, customer is able to select each low-stage and high stage volume ratio from two specifications. Employing these combinations of each specification, 2520**C is providing a high versatility that can satisfy a wide range of operation conditions required by different applications at the load side. Therefore, the 2520**C models are the long-selling products which have marketed for over 30 years since their development in 1983 as the large sized compound 2-stage screw compressor.